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| File name + audio to listen | Title | Where it plays | Info |
|---|---|---|---|
| [[File:Mu-boss-satanPhase1.mp3]] | Satan's Demonico-Satanistic Insanity: Phase 1 (fan-made name) | Satan's (final) boss fight: Phase 1 | His bossfight theme has the same rhythm as Happy Hour's theme. |
| [[File:Mu boss satanPhase2.mp3]] | Satan's Demonico-Satanistic Insanity: Phase 2 (fan-made name) | Satan's (final) boss fight: Phase 2 (chase part) | The music won't change untill you return to Satan's hall, while Satan in his biblically accurate form chases you down. |
| [[File:Mu boss satanWins.mp3]] | Satan's Satanistic Victory (Fan-made name) | Satan's (final) boss fight: Satan's victory | In the game, the moment when Satan siphons Anton's redness, the music gets pitched down until it gets lighter and then darker. |